California Integrated Water Quality System (CIWQS 20.5)


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	California Integrated Water Quality System Project (CIWQS)

Facility At-A-Glance Report

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Place ID 231480

General Information
Region	Place ID	Place Name	Place Type	Place Address	Place County
2	231480	Hennessey Water Treatment Plant	Water Treatment Plant	1000 Sage Canyon St. Helena, CA,	Napa

Related Parties

Party	Party Type	Party Name	Role	Classification	Relationship Start Date	Relationship End Date
629893	Person	Alessandra Moyer	Case Worker		02/03/2022
547281	Person	Debbie Phan	Case Worker		07/03/2017	07/12/2021
138473	Person	Farhad Azimzadeh	Contact		05/19/2016	04/03/2017
552880	Person	Erin Kebbas	Contact		05/19/2016
554849	Person	Marcos De la Cruz	Case Worker		04/01/2016	02/01/2018
137758	Organization	San Francisco Bay Regional Water Quality Control Board	Regulating	Waterboard	11/09/2011
139389	Person	Lourdes Gonzales	Case Worker		11/09/2011	04/01/2016
11115	Organization	Napa City Water Division	Owner	City Agency	06/17/2005

Total Related Parties: 8

Regulatory Measures

Reg Measure ID	Reg Measure Type	Region	Program	Order No.	WDID	Effective Date	Expiration Date	Status	Amended?
171714	Unregulated	2	UNREGS		2 2803013			Never Active	N
406270	Enrollee - NPDES	2	NPDMUNILRG	R2-2021-0009	2 283083002	06/02/2016	06/30/2026	Active	N
368702	Enrollee	2	NPDNONMUNIPRCS	R2-2009-0033	2 283083006	06/18/2003	02/28/2015	Historical	N

Total Reg Measures: 3

Violations

Violation ID	Occurred Date	Violation Type	(-) Violation Description	Corrective Action	Status	Classification	Source
1141695	01/01/2025	DMON	Missing TSS, settleable solids, and turbidity for 2nd half of 2024		Violation	B	Report
1122789	12/31/2022	DMON	Missing acute toxicity monitoring in 2022 (as required by Order R2-2021-0009, Table E-2, footnote 4).	The Discharger resumed sampling for acute toxicity in August 2023.	Violation	B	Report
Report displays most recent five years of violations. Refer to the Interactive Violation Report for more data.

Total Violations: 2

Priority Violations: 0

*Click the "(+/-) Violation Description" link to expand and contract the violation description.
*As of 5/20/2010, the Water Board's Enforcement Policy requires that all violations be classified as 1, 2 or 3, with class 1 being the highest. Prior to this, violations were simply classified as Yes or No. If a 123 classification has been assigned to a violation that occurred before this date, that classification data will be displayed instead of the Yes/No data.

Violation Types
DMON = Deficient Monitoring

Enforcement Actions

Enf Id	Enf Type	Enf Order No.	Effective Date	Status
460566	Oral Communication		03/04/2025	Historical
402827	Admin Civil Liability	R2-2015-1025	12/07/2015	Historical
378701	Admin Civil Liability	R2-2011-0098	04/19/2011	Historical
379124	Oral Communication		03/14/2011	Historical
368703	Expedited Payment Letter		07/03/2009	Never Active
246359	Notice of Violation		12/23/2002	Historical

Total Enf Actions: 6

Inspections

Inspection ID	Inspection Type	Lead Inspector	Actual End Date	Planned	Violations	Attachment
25491218	Miscellaneous inspection	Farhad Azimzadeh	08/05/2015	N	0	N/A
1806167	Follow-up inspection (noncompliance)	Myriam Zech	07/21/2009	N	0	N/A
328110	Follow-up inspection (enforcement)	Tobi Tyler	01/09/2003	Y	0	N/A
328108	Complaint inspection	Tobi Tyler	09/05/2002	Y	0	N/A

Total Inspections: 4

Last Inspection: 08/05/2015

The current report was generated with data as of: 05/29/2025
Regional Boards are in the process of entering backlogged data.
As a result, data may be incomplete.

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